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Transport properties of oligomeric subunit structures

✍ Scribed by José M. García Bernal; José García De La Torre

Publisher
Wiley (John Wiley & Sons)
Year
1981
Tongue
English
Weight
551 KB
Volume
20
Category
Article
ISSN
0006-3525

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✦ Synopsis

Abstract

The translational friction coefficients, rotational friction coefficient, and intrinsic viscosity of rigid regular structures composed of up to eight identical spherical subunits have been accurately calculated. The aim of this calculation is to interpret the hydrodynamic properties of oligomeric subunit proteins. To avoid the well‐known failure of the theory in the evaluation of rotational coefficients and intrinsic viscosities, each subunit is hydrodynamically modeled as a polyhedral array of smaller spheres. The analysis of several alternatives suggests that a cubic array is the best choice. The reliability of this strategy is checked by comparison of the calculated values for all the transport properties of a sphere and the translational friction coefficients of a dimer with their exact values. Finally, the hydrodynamic properties of a number of subunit structures with varying number of subunits and different geometries are tabulated.

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